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The optical tube is really the heart of your night time exploration.  Sizes range from 50mm to 20" in diameter as well as f/ratios from f/2.2 to f/15.  The optical designs range from simple doublet refractors to complex cassegrains with built-in field flatteners.  There is literally something for everyone here, you just have to decide what path you want to walk down.  We are always here to help with any questions you have.

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  • Original price $139.95 - Original price $139.95
    Original price
    $139.95
    $139.95 - $139.95
    Current price $139.95

    Astro-Tech 60mm Photoguide Refractor OTA

    Astro-Tech
    In Stock

    The new Astro-Tech AT60GS 60mm guidescope with upgraded helical focuser makes highly accurate autoguiding of deep space astrophotos affordable for ...

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    Original price $139.95 - Original price $139.95
    Original price
    $139.95
    $139.95 - $139.95
    Current price $139.95
  • Original price $2,079.00 - Original price $2,079.00
    Original price
    $2,079.00
    $2,079.00 - $2,079.00
    Current price $2,079.00

    Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8)

    Celestron
    More on the way

    Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike the ...

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    Original price $2,079.00 - Original price $2,079.00
    Original price
    $2,079.00
    $2,079.00 - $2,079.00
    Current price $2,079.00
  • Original price $830.00 - Original price $830.00
    Original price
    $830.00
    $830.00 - $830.00
    Current price $830.00

    Sky-Watcher 8" Quattro 200P Imaging Newtonian S11210

    Sky-Watcher
    In Stock

    If you are an astro-photographer looking for a fast optical system at a fantastic price then the Quattro series is for you. The Sky-Watcher 8" f/4 ...

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    Original price $830.00 - Original price $830.00
    Original price
    $830.00
    $830.00 - $830.00
    Current price $830.00
  • Original price $1,180.00 - Original price $1,180.00
    Original price
    $1,180.00
    $1,180.00 - $1,180.00
    Current price $1,180.00

    Sky-Watcher 10" Quattro 250P Imaging Newtonian S11220

    Sky-Watcher
    In Stock

    If you are looking for a large fast optical system to enhance your astro-photography then the Quattro series from Sky-Watcher should fit the bill. ...

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    Original price $1,180.00 - Original price $1,180.00
    Original price
    $1,180.00
    $1,180.00 - $1,180.00
    Current price $1,180.00
  • Original price $2,990.00 - Original price $2,990.00
    Original price
    $2,990.00
    $2,990.00 - $2,990.00
    Current price $2,990.00

    Takahashi Epsilon E-130D Astrograph

    Takahashi
    More on the way

    Wide-field imagers rejoice!  The Takahashi Epsilon E-130D telescope is an incredible wide-field imaging machine. The Epsilon series of astrographs ...

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    Original price $2,990.00 - Original price $2,990.00
    Original price
    $2,990.00
    $2,990.00 - $2,990.00
    Current price $2,990.00
  • Original price $4,399.00 - Original price $4,399.00
    Original price
    $4,399.00
    $4,399.00 - $4,399.00
    Current price $4,399.00

    Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) Version 2 Optical Tube

    Celestron
    In Stock

    The 11" f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) - the next advance in deep space imaging - is available now for the serious astrophotographe...

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    Original price $4,399.00 - Original price $4,399.00
    Original price
    $4,399.00
    $4,399.00 - $4,399.00
    Current price $4,399.00
  • Original price $3,599.00 - Original price $3,599.00
    Original price
    $3,599.00
    $3,599.00 - $3,599.00
    Current price $3,599.00

    Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) Optical Tube

    Celestron
    In Stock

    The 11" f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) - the next advance in deep space imaging - is available now for the serious astrophotographe...

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    Original price $3,599.00 - Original price $3,599.00
    Original price
    $3,599.00
    $3,599.00 - $3,599.00
    Current price $3,599.00
  • Original price $2,499.00 - Original price $2,499.00
    Original price
    $2,499.00
    $2,499.00 - $2,499.00
    Current price $2,499.00

    Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8) Imaging Kit

    Celestron
    In Stock

      Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike th...

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    Original price $2,499.00 - Original price $2,499.00
    Original price
    $2,499.00
    $2,499.00 - $2,499.00
    Current price $2,499.00
  • Original price $2,195.00 - Original price $2,195.00
    Original price
    $2,195.00
    $2,195.00 - $2,195.00
    Current price $2,195.00

    Astro-Tech 12" f/4 Carbon Fiber Truss-Tube Imaging Newtonian

    Astro-Tech
    Sold Out

    If you are a serious deep space astrophotographers with a big mount, this Sky & Telescope 2016 Hot Product 12" Astro-Tech AT12INT carbon fiber ...

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    Original price $2,195.00 - Original price $2,195.00
    Original price
    $2,195.00
    $2,195.00 - $2,195.00
    Current price $2,195.00
    Sold out
  • Original price $1,795.00 - Original price $1,795.00
    Original price
    $1,795.00
    $1,795.00 - $1,795.00
    Current price $1,795.00

    Astro-Tech 10" f/4 Carbon Fiber Truss-Tube Imaging Newtonian

    Astro-Tech
    More on the way

    For serious deep space astrophotographers, this Sky & Telescope 2016 Hot Product 10" Astro-Tech AT10INT carbon fiber truss tube imaging Newtoni...

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    Original price $1,795.00 - Original price $1,795.00
    Original price
    $1,795.00
    $1,795.00 - $1,795.00
    Current price $1,795.00
  • Original price $1,815.00 - Original price $1,815.00
    Original price
    $1,815.00
    $1,815.00 - $1,815.00
    Current price $1,815.00

    Sky-Watcher 12" Quattro 300P Imaging Newtonian S11230

    Sky-Watcher
    More on the way

    The Sky-Watcher 12" Quattro will bring your imaging into the next level. The Sky-Watcher 12" f/4 Quattro Imaging Newtonian has . . . 305mm apertu...

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    Original price $1,815.00 - Original price $1,815.00
    Original price
    $1,815.00
    $1,815.00 - $1,815.00
    Current price $1,815.00
  • Original price $13,999.00 - Original price $13,999.00
    Original price
    $13,999.00
    $13,999.00 - $13,999.00
    Current price $13,999.00

    Celestron RASA 36 Rowe-Ackermann Schmidt Astrograph V2 OTA 91078

    Celestron
    More on the way

      Highlights A breakthrough 36 cm aperture, f/2.2 optical system designed for professional applications that require both a wide field of view and...

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    Original price $13,999.00 - Original price $13,999.00
    Original price
    $13,999.00
    $13,999.00 - $13,999.00
    Current price $13,999.00
  • Original price $595.00 - Original price $595.00
    Original price
    $595.00
    $595.00 - $595.00
    Current price $595.00

    Sky-Watcher Quattro 150P Imaging Newtonian S11205

    Sky-Watcher
    More on the way

    Sky-Watcher Quattro 150P Imaging Newtonian Reflector The Sky-Watcher Quattro 150P is a fast, precision-engineered Newtonian reflector designed from...

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    Original price $595.00 - Original price $595.00
    Original price
    $595.00
    $595.00 - $595.00
    Current price $595.00
  • Original price $5,510.00 - Original price $5,510.00
    Original price
    $5,510.00
    $5,510.00 - $5,510.00
    Current price $5,510.00

    Takahashi Epsilon E-180ED Astrograph

    Takahashi
    More on the way

    The Takahashi Epsilon E-180ED is fast imaging system for the most discerning user. The Epsilon series of astrographs are specifically designed for ...

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    Original price $5,510.00 - Original price $5,510.00
    Original price
    $5,510.00
    $5,510.00 - $5,510.00
    Current price $5,510.00

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